| 1. | 16 - 13 = |
3
|
2
|
1
|
6
|
| 2. | 13 - 12 = |
3
|
1
|
4
|
7
|
| 3. | 21 - 15 = |
3
|
1
|
6
|
2
|
| 4. | 24 - 21 = |
9
|
3
|
2
|
1
|
| 5. | 19 - 9 = |
1
|
9
|
10
|
6
|
| 6. | 11 - 5 = |
5
|
7
|
10
|
6
|
| 7. | 11 - 7 = |
2
|
3
|
7
|
4
|
| 8. | 30 - 15 = |
12
|
10
|
11
|
15
|
| 9. | 13 - 4 = |
7
|
9
|
3
|
5
|
| 10. | 7 - 3 = |
9
|
3
|
4
|
2
|
| 11. | 5 - 3 = |
2
|
3
|
6
|
10
|
| 12. | 22 - 12 = |
6
|
7
|
10
|
9
|
| 1. | 16 - 13 = |
3
|
2
|
1
|
6
|
| 2. | 13 - 12 = |
3
|
1
|
4
|
7
|
| 3. | 21 - 15 = |
3
|
1
|
6
|
2
|
| 4. | 24 - 21 = |
9
|
3
|
2
|
1
|
| 5. | 19 - 9 = |
1
|
9
|
10
|
6
|
| 6. | 11 - 5 = |
5
|
7
|
10
|
6
|
| 7. | 11 - 7 = |
2
|
3
|
7
|
4
|
| 8. | 30 - 15 = |
12
|
10
|
11
|
15
|
| 9. | 13 - 4 = |
7
|
9
|
3
|
5
|
| 10. | 7 - 3 = |
9
|
3
|
4
|
2
|
| 11. | 5 - 3 = |
2
|
3
|
6
|
10
|
| 12. | 22 - 12 = |
6
|
7
|
10
|
9
|